Why is the notion of a trend
One of the key tenets of Dow
Once a trend is in place,
then it is likely to remain in place; and
This is very important, and it is a fundamental principle that
underlines a lot of the success in the market. For more
information about Dow Theory,
see the More Information
list at right.
trend continues to exist until it is confirmed to have ended.
is this important or useful? Because if we can identify a rising trend
in a stock, and buy some of the stock, we can ride the trend as it
Rule (in 3 Times)"
Any stock or index will always be trading
in one of 3 "ways":
This is a simple re-statement of a tenet of Dow Theory; but it is a
useful way to remember a simple fact about the price chart. That the
chart will show an up trend, or a down trend, or no trend.
- in an up trend, or
- in a down trend, or
- there will be no trend.
See more information on the 3Ways Rule.
How to spot a trend
There are a number of ways to spot an up-trend:
simplest eye-ball call.
On a price chart, if the price starts in the bottom
left corner and finishes in the top right corner, it must be trending
up (as in the sample at right - click on the image for a larger
Higher Highs and Higher Lows.
A rising trend is described in classical Dow Theory as a
series of Higher Highs and
Higher Lows. This is demonstrated in the sample chart at
where each Higher High is denoted with "HH" and
each Higher Low with "HL". The terms "higher peak" and "higher trough"
are also in common use in reference to a rising trend.
- Trend Line.
a price moves higher, it may be possible to place a rising straight
line under the share price (as in the chart image above). This line
appears to act as a "floor" to support rising prices. As long as the
price stays above the trend line, then the up-trend is said to be in
place. Once the price breaks below the trend line, then the trend is
said to have failed.
We can use a Moving Average chart indicator on the price chart to
indicate whether a price is "trending" up or down (or not at all). In
the sample Monthly
price chart at right (click on the image for a larger version), a
Moving Average (MA) is shown as a blue line. It can be inferred that
where the MA is rising, the stock is also tending to rise (ie.
uptrending). Conversely, a falling MA suggests the stock is trending
down. Of course, the
picture might be different on a weekly or daily chart, and the number
of periods we use in the MA indicator can also make a difference. For a
realistic example of using this idea to spot rising trends,
see Brainy's Weekly Watch List
The health and strength of a trend - MMA
strength of a trend can be
quickly determined using a number of different technical analysis chart
tools, including the Multiple Moving Average
(MMA) indicator on the price chart.
There are more than a couple of these in existence in good charting
software packages including the Guppy MMA (or GMMA for short) and the
The sample chart at right is the same chart as shown in the MA
above, except that this time a Guppy MMA indicator is included. At
glance, this indicator looks complex; but it is not. It is comprised of
12 MA lines - a group of 6 blue ones, and a group of 6 red ones. For
the trained analyst, this
is very helpful in telling us about the health and nature of a trend
(the mood and sentiment).
See a sample use of the GMMA in Robert's
Weekly Market Analysis.
tools for determining trend strength include: the simple trend line, a
simple linear regression line, Alan Hull's ROAR indicator and the ADX
information, see the eBook Articles listed above right.
How to quickly find a trend with
If you are using good charting software, with a
good scan tool, then it is not hard to quickly scan through a long list
of stocks and display a short list of the stocks that currently exhibit
the characteristics of a trend.
One good software tool is BullCharts, where it is possible
create a scan to search for trending stocks. Brainy's eBook (PDF)
Article BC-10-400, "Scans - Match (not) all criteria"
2), discusses this.
And a down-trend...
is not only up-trends in which we are
interested; but also down-trends. If we feel that a stock in a
down-trend is over-sold and potentially a great bargain, we can monitor
the price chart for a confirmed break of the down-trend. And those
people who are happy to short-sell a stock, can look for confirmed down
trends, and sell into the down-trend.
visually spot a down-trend on a price chart, we look for the opposite
of the signs of an uptrend - a series of Lower Highs and Lower Lows (or
Lower Peaks and Lower Troughs).
A down trend is demonstrated in the weekly price chart of National
Bank (NAB) at right from late 2007 until mid-2009 (click on the chart
for a larger image). NAB fell 61% from $43 to $16 over a 16 month
period during the so-called infamous GFC (btw - imagine a blue chip
stock falling 61%!). The comments on the chart at right explain the red
down-trend line, and the observed break-out in March 2009.
this chart of NAB we have placed a downward straight line above the
price action, and it appears to act as a ceiling to prevent prices from
rising. Once the price does break above the down-trend line, it can be
said that the trend is over (as indicated toward the end of this sample
For more details about Trends,
how to spot them, and how to use them, see the Share Market Toolbox
links at the top of the column at right.
Case studies - in numerous articles published by The Age (Fairfax press), and the ASX.
Articles - Share
Market Toolbox Members can see more details in the following eBook
(Toolbox non-Members can see the "Page 1" of these Articles from the Master
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the Testimonials - the things that people say about the
Toolbox and more.
Any special terms that might be used in the text at left, can probably
be found discussed in the Toolbox somewhere. Perhaps
in Brainy's eBook Articles - see the Master
Index list for details. Or, search
the eBook Articles.
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The information presented herein
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are not recommendations or
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Copyright 2011-2012, R.B.Brain -
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Last revised: 25 September, 2012.